MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryGOCPrevious Year Questions
The IUPAC name of the following compound is CH2 = C = CH — CH3 (CPMT 2011)
A.but-2,3-diene
B.but-1,2-diene✓ Correct
C.but-1-ene-2-yne
D.conjugated butadiene
Explanation
CH2 = C = CH — CH3 Here, there are four carbon atoms which gives us the root word ‘but’. Now two double bonds are present at positions 1 and 2. Double bonds are indicated as ‘ene’. Since there are two double bonds we will use ‘diene’. Thus, the correct option is (b) but-1,2-diene
Practice More Like This
Take chapter-wise tests, track your progress, and master GOC.
Start Free Practice →